There are behaviors that are definitely creepy and should be avoided. People are willing to overlook them if they find the person attractive. That doesn't change the fact that it's best to avoid those behaviors, and that you can simultaneously be unattractive, non-creepy, and successful in social situations.

It's unfair in the way that unattractiveness is always unfair--no matter what you do, you're judged by a much harsher standard than anyone else, and people desperately want to diminish that reality so they can continue to believe in just world fallacies and retain a sense of control about what happens to them. But in the end there's only two ways to respond: understandably bitter anger at the unfairness of the world, or getting over it. Neither will fix the world, but one will make you happy.